Furnace



3Q, 1933. D L BLATTER 1,911,488

FURNACE Filed Aug. 11, 1928 2 Sheets-Sheet 1 Z6 1 f INVENTOR.

it BY 72%;

2 41461 ATTORNEYS.

' May 30, 1933. D L BLATTER 1,9111488 FURNACE Filed Aug. 11, 1928 2Sheets-Sheet 2 IN V EN TOR.

25 A TTORNEYS.

Patented May 30, 1933 UNITED 'TFS'TATESVIJ PATENT o FicE;

- noNALn L. BLATTEFR, or ERIE, PENNSYLVANIA, assreNon To Earn oITY IRoNwoa'xs;

specification and claims.

on ERIE, PENNSYLVANIA, AooaroaAT oN or rEN sYLvaNI FURNACE H tApplication filed August 11, 1928. Serial No.5399,083.

. Furnaces for burning fuel, particularly fine fuel, are usuallyprovided with a means supplying fuel with primary air and 1n add1 tionto the primary air secondary airto complete combustion. In order thatthe combustion may be fully completed it is necessaryto commingle theair and fuel so that all the fuelmay properly burn with aslittlediluall-sectionsof these deflectors receive water. 1

tion byexcess air as possible.

In a former applicatiomfiled by mesept. 12, 1927, Serial Number219,046,,1 disclosed a means of deflecting into numerous streams theincoming fuel and primary air, In the present invention I preferablyutilize th s means of introduction of the fuel and primary air,supplementing the structure with air tuyeres with deflectors capable ofdeflecting the air causing crossing and intermingling of the variousstreams and creating turbulence and intimate contact between the fueland the air so that there may be rapid and complete combustion. Featuresand details of the invention will appear from the.

A preferred embodiment of the invention isillustrated inthe accompanyingdrawings as follows v Fig. 1 shows a section of a furnace onthe line 11in Fig. 2, showing in elevatlon the fuel and airdelivering devices. V

Fig. 2a sectional view on the line 22 in Fig. 1, showing the front walln elevation.

Fig. 3 a section of one of the deflectorplates on the line, 33 in Fig.2.

Fig. 4 a section ontheline 4-4 in .Fig. Fig. 4a an enlarged plan view ofan air controlling vane. Fig. 5 a side elevation of a tuyere anddeflector plate. i m g Fig. 6 aplan View of the upper set of secondaryair tuyeres.

Fig. 7 a similar View of the bottom tuyere.

Fig. 8 a side elevation of the bottom tuyere.

:1marks the furnace chamber and 2 the front .wall of the chamber. Thisis provided with a fuel and air opening 3. A nozzle 4 is arranged in theopening. A connection 5 extends .fromthe nozzle to a .conduit 6. Theconduit .6 extends to the discharge of a pulverizer7. Deflector-s78 arearranged-atthe discharge of the nozzle4 and preferably projecttherefrom.--They are carried on hollow,- hingesifia" and supplied withwater through; pipe 9,- vthis pipe/delivering water to one group of theplates and the other section being connected with-the'firstsection' by aU bend 10 to which the water passes so that The water discharges throughthe pipe 11..

Secondary air tuyeres; 12 and 13;extend.

that may bedesired. Deflector plates 17 are mounted-at the outlet of thetuyere 12 pref erablyprojecting inwardly therefrom. They arewater-cooled receiving; their water from a pipe 18. Thelower tuyere- 13is supplied with similar deflectors 19 receiving water froma pipe 20. 7V i All thedefiector plates are hollow having outer walls21 and acentralwall 22, the;wall 22 forming a U-shaped passagei23hthrough thedeflector plate. ,Nipple openings 24 are suppliedat the hinge ends ofthe'plates and nipples 24a connect the diflerentplateslso; that there.isa continuous passage of water through these, plates. These nippleswith their pipe connections make it possible to adjust the deflectors asa whole,aor the individ-[ ual deflector may be adjusted. Ordinarily thedeflectors 8 are alternated up and down. YVhile the deflectors of thesecondary air tuyere are more or less in line so as to cross the streamsof fuel and primary air the in clination of the deflectors for thesecondary air maybe varied to better adjust them to the air streams.Arranged within the tuyeres are vanesi25 these are U shaped', the loopextending around and being secured by bolts 26. Spreaders 27 arearranged: between the arms of the vanes 25 and these spreaders arecarried by pins 28 to which levers 29 are at: tached. Byithrowing thelevers the arms of vanes 25 may be .separated, or closed,th11svaryingzthe amount and velocity of air. de-. livered The vanes 25it-willbenoted cut ter to have the vanes so arranged and the deflectorsadjusted so that the streams of secondary air and primary air arestaggered relatively to each other. The sectionalarrangement and adjustability of the deflectors make it possible to so relate the differentstreams as to get the greatest turbulence and intermingling of theelements of combustionv What I claim asnew is 1. Ina furnace, thecombination of a furnace chamber; means supplying fine fuel withprimaryair tothe furnace; and secondary air delivering mechanism comprising asecondary air tuyere at each sideof said means, and deflectors at theoutlets of said tuyeres deflecting the secondary airinto comminglingrelation with the primary air stream from said means.

2. In a furnace, the combination of a furnace chamber; means supplyingfine fuel with primary air to the furnace; and secondary air deliveringmechanism comprising a secondary air tuyere at each side of said means,and deflectors at the outlets of said tuyeres deflecting the secondaryair into commingling relation with. the primary air stream from saidmeans, said deflectors being adjustable.

3 In afu-rnace, the combination of a furnace chamber; means supplyingfine fuel with primary" air-to the furnace; and secondary air deliveringmechanism comprising a secondary air tuyere at each side of said means,and a plurality of deflectors at the outlets of said tuyeres deflectingthe secondary airinto commingli-ng relation with the primary air streamfrom said means, said means and tuyeres being elongated crosswise and inthe same directionand said deflectors extending along each tuyere. Y

4. In a furnace, the combination of a furnacechamb'er; means supplyingfine fuel with primary air to the furnace; and secondary air deliveringmechanism comprising a secondary air tuyere at each side of said means.and deflectors at the outlets of said tuyeres deflecting the secondaryair into commingl-ing relation with the primary air stream from saidmeans, said means and tuyeres being elongated crosswise and in the samedirection and the deflectors extending along't he tuyeres and beingsectional and adjustable.

5. In a furnace, the combination of a furnace chamber; means supplyingfine fuel with primary air to the furnace, said means comprising anozzle elongated crosswise and a plurality of deflectors 'at the outletof the nozzle; and secondary air delivering mechanismcomprising a tuyereelongated crosswise and in. the same direction as the nozzle and aplurality of deflectors at the outlet of the tuyere the deflectors onthe nozzle and tuyere deflecting the fine fuel and primary air andsecondary air into commingling relation.

6. In a furnace, the combination of a furnacechamber means supplyingfine fuel with primary air to the furnace, said means comprising anozzle elongated crosswise-and a plurality of deflectors at the outletof the nozzle; and secondary air delivering mechanism comprising atuyere elongated crosswise and in the same direction as the nozzle and aplurality of deflectors at the outlet of the tuyere, said deflectorsbeing individually adj ustable to adapt the deflectors-to adjustmenttostagger the air streams into commingling relation.

.8. In a furnace, the combination of afurnace chamber; meanssupplyingfine fuel with primary air to the furnace comprising a nozzleelongated crosswise and oppositely inclined deflectors at the outlet ofthe nozzle; and secondary air delivering mechanism comprising tuyeres atopposite sides of the nozzle and deflectors on the tuyeres adapted todeflect the secondary air stream into intermingling relation with thestreams of primary air and fuel.

9. In a furnace, the'combination of a furnace chamber; means supplyingfine fuel with primary air to the chambercomprising a noz-' zleelongated crosswise, and staggered and oppositely inclined deflectors atthe outlet of the nozzle; and mechanism delivering secondary air to thechamber comprising tuyeres elongated crosswise and in the same directionas the nozzle at opposite sides of the nozzle having deflectors at theiroutlet adapted to deflect the secondary air stream into commingl'ingrelation with the primary air and fuel streams.

1 0. In a furnace, the combination ofa furnace chamber; means supplyingfine fuel with primary air to" the chambercomprisin'ga n'oza 'zleelongated crosswise, and staggered and oppositely inclined deflectors atthe outlet of the nozzle; and mechanism delivering sec ondary air to thechamber comprising tuyeres elongated crosswise and in the same directionas the nozzle at opposite sides of the nozzle each having deflectors attheir outlet, said deflectors being individually adjustable and adaptedto deflect the secondary air stream' into commingling relation with theprimary air streams.

' 11. In a furnace, the combination of a furnace chamber; meanssupplying fine fuel with primary air to the chamber; and secondary airdelivering mechanism comprising a secondary air tuyere elongated incross section, a plurality ofdeflectors at the outlet of the tuyre, andvanes in the tuyere varying the flow from the tuyere with relation todifferent deflectors and the means.

12. In a furnace, the combination of a furnace chamber; means supplyingfine fuel with primary air to the chamber; and secondary, air deliveringmechanism comprising a secondary air tuyre elongated in cross section, aplurality of deflectors at the outlet of the tuyere, and vanes in thetuyere varying the delivery from the tuyere with relation to differentdeflectors to divide the air into streams and into commingling relationwiththe fine fuel and primary air.

13. In a furnace, the combination of a fur- -nace chamber; meanssupplying fine fuel with primary air to the chamber; and secondary airdelivering mechanism comprising a secondary air tuyere elongated incross section, a plurality of deflectors at the outlet of the tuyere,and vanes in the tuyre varying the delivery from the tuyere withrelation to the deflectors and adapted to divide the air into streamscorresponding to alternate deflectors.

14. In a furnace, the combination of a furnace chamber; means deliveringprimary air and fuel to the chamber comprising a nozzle elongatedcrosswise and oppositely inclined deflectors arranged in staggeredrelation at the outlet of the nozzle; and mechanism delivering secondaryair to the chamber comprising tuyres elongated crosswise and in thedirection of the nozzle, said tuyeres being arranged at opposite sidesof the'nozzle, a plurality of deflectors at the outlet of each tuyere,and vanes in the tuyeres directing the air to alternate deflectors onthe tuyeres, said deflectors on the nozzle and tuyeres being adapted todeflect the streams from the nozzle and-tuyeres into interminglingrelation.

In testimony whereof I have hereunto set my hand. 7

DONALD L. BLATTER.

